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The Eddington limit is a theoretical maximum accretion rate onto an accreting body under certain idealised circumstances. The limit is calculated by assuming that the gravitational acceleration felt by the accreted material is exactly balanced by radiation pressure, under the assumptions that the material is completely ionised hydrogen, that the opacity is ...


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The Eddington luminosity is given by: $$L_{Eddington}=\frac{4\pi c GMm}{\sigma_T}.$$ This represents the maximum luminosity of a body, when there is a balance between the two primary forces - that of the radiation, acting out of the body, and that of the gravitational force of the star, acting inwards. The terms sub-Eddington and super-Eddington refer to ...



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